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| MC68HC908LJ24 Datasheet, PDF (460/464 Pages) Motorola, Inc – Microcontrollers | |||
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A.3 Oscillator
The low-power oscillator supports a reference frequency of 32.768kHz
only; either from a crystal oscillator circuit (Figure A-1) or a direct clock
input to the OSC1 pin.
MCU
OSC1
RB
OSC2
RS
32.768 kHz
C1
X1
C2
Figure A-1. MC68HC908LK24 Crystal Oscillator Connection
A.4 Low-Voltage Inhibit
The LVIPWRD bit in CONFIG1 register is logic 1 after any reset.
Address: $001F
Bit 7
6
5
4
3
Read:
0
COPRS LVISTOP LVIRSTD LVIPWRD
Write:
MC68HC908LK24 Reset: 0
0
0
1
0
MC68HC908LJ24 Reset: 0
0
0
0â â
0
â â Reset by POR only.
= Unimplemented
2
1
SSREC STOP
0
0
0
0
Figure A-2. MC68HC908LK24 Configuration Register 1 (CONFIG1)
Bit 0
COPD
0
0
LVIPWRD â LVI Power Disable Bit
LVIPWRD disables the LVI module.
1 = LVI module power disabled
0 = LVI module power enabled
Data Sheet
460
MC68HC908LJ24/LK24 â Rev. 2.1
Freescale Semiconductor
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